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Article #185

34 files missing from /dev! (was: ext2fs filesystem died)

#185
From: Tim Benham
Date: Sat, 16 Jul 1994 23:52
52 lines
3734 bytes
Good news! I have my system booting again. Bad news: no fewer than 9
block special and 25 character special files (including /dev/null)
has disappeared from /dev. In their place I have a whole swag of files
in /lost+found with cool names like #20205.

My question is, what the heck am I supposed to do about this? Should
I mv the files back to /dev? should I create new special files?

Tim Benham (bentj93@cserve.cs.adfa.oz.au) wrote:
: Recently I made the mistake of mke2fs-ing my remaining 57MB MSDOS
: partition. Despite doing everything as I had been told - umounted
: the dos partition, mke2fs'd it, edited /etc/fstab to suit - it
: never mounted correctly during system boot. Instead the error message
: shown at exhibit A was always displayed. Running fsck against /dev/hda1 
: would always 'fix' the problem, but the error message remained the
: same. I edited /dev/hda1 out of /etc/fstab so as not to be continually
: reminded of the fact I had 57M of unusable disk.

: A few days later things went from bad to worse. It crashed during an
: X windows session (as it has always been wont to do) and now cannot
: be booted. Now it prints the error message shown at exhibit B ad nauseam.

: Needless to say this is very distressing, particularly as all my
: research work is on the partition in question. Any suggestions as
: to what might be the problem and, better, what might be the solution
: would be much appreciated. In the meantime I am trying to procure a
: boot floppy.

: ---------------- Exhibit A ----------------
: Parallelizing fsck version 0.5 (28-Mar-94)
: /dev/hda3 is clean, no check.
: /dev/hda1 is clean, no check.
: Remounting root device with read-write enabled.
: EXT2-fs error (device 3/1): ext2_check_blocks_bitmap: Wrong free blocks count for group 6, stored = 7930, counted = 0
: Remounting filesystem read-only
: EXT2-fs error (device 3/1): ext2_check_blocks_bitmap: Wrong free blocks count in super block, stored = 55497, counted = 47567
: Remounting filesystem read-only
: /dev/hda1 on /a type ext2 (rw)

: ---------------- Exhibit B ----------------
: ext2_fs error (device 3/3): ext2_find_entry: bad directory entry: rec_len%4!=0
: offset=540, inode=20205, rec_len=4373, name_len=4369

: --
: 		  People who like this sort of thing
:        	      will find this the sort of thing they like.
: Tim J.Benham                                       bentj93@cs.adfa.oz.au

--
		  People who like this sort of thing
       	      will find this the sort of thing they like.
Tim J.Benham                                       bentj93@cs.adfa.oz.au
Technical Details
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References: <1994Jul16.010625.25751@sserve.cc.adfa.oz.au>

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From: tim@duh.cs.adfa.oz.au (Tim Benham)
Subject: 34 files missing from /dev! (was: ext2fs filesystem died)
Message-ID: <1994Jul16.235251.27564@sserve.cc.adfa.oz.au>
Followup-To: comp.os.linux.help,aus.computers.linux,alt.uu.comp.os.linux.questions
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Date: Sat, 16 Jul 1994 23:52:51 GMT
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